262
FNCA52 TJSJ 051930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST FRI JUN 5 2026
DISCUSSION
BASED ON THE OBSERVED FIRE WEATHER CONDITIONS, WE EXPECT A LOW TO
MODERATE FIRE DANGER RISK. PLEASE STAY TUNE FOR FURTHER UPDATES.
PRZ014-060800-
SOUTHEAST COASTAL PLAINS-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 0 0 20 30
TEMP (24H TREND) 72 (-2) 90 (+2) 73 89
RH % (24H TREND) 95 (+5) 60 (+5) 95 61
WIND 20FT/EARLY(MPH) E 10 E 13 E 11 E 14 G22
WIND 20FT/LATE(MPH) E 9 SE 13 G21 E 10 E 14 G22
MIXING HGT(FT-AGL/MSL) 4620 5070
TRANSPORT WND (MPH) E 16 E 20
VENT RATE (KT-FT) 64680 86190
DISPERSION 5 5
DSI 3 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-060800-
SOUTHERN HILLS-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 0 20 40
TEMP (24H TREND) 69 (-2) 87 (+3) 69 86
RH % (24H TREND) 99 (+7) 64 (-1) 100 66
WIND 20FT/EARLY(MPH) E 9 E 11 E 11 E 13
WIND 20FT/LATE(MPH) E 9 SE 12 E 12 SE 13
MIXING HGT(FT-AGL/MSL) 5600 5660
TRANSPORT WND (MPH) SE 14 E 17
VENT RATE (KT-FT) 67200 84900
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-060800-
NORTH COASTAL PLAINS-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 20 0 40
TEMP (24H TREND) 72 (-1) 90 (0) 72 89
RH % (24H TREND) 99 (+6) 61 (0) 99 63
WIND 20FT/EARLY(MPH) SE 12 E 13 E 12 E 14
WIND 20FT/LATE(MPH) SE 9 E 17 E 12 E 16
MIXING HGT(FT-AGL/MSL) 5330 5670
TRANSPORT WND (MPH) E 14 E 18
VENT RATE (KT-FT) 63960 90720
DISPERSION 5 5
DSI 3 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-060800-
NORTHERN HILLS-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 60 0 60
TEMP (24H TREND) 69 (-2) 88 (0) 70 88
RH % (24H TREND) 99 (+2) 64 (+4) 99 66
WIND 20FT/EARLY(MPH) SE 10 E 11 E 10 E 11
WIND 20FT/LATE(MPH) SE 5 E 14 E 6 E 14
MIXING HGT(FT-AGL/MSL) 6560 6670
TRANSPORT WND (MPH) E 10 E 15
VENT RATE (KT-FT) 59040 86710
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-060800-
WEST COAST-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 0 50
TEMP (24H TREND) 72 (-1) 91 (+1) 72 91
RH % (24H TREND) 100 (+6) 62 (+2) 99 62
WIND 20FT/EARLY(MPH) E 10 E 13 E 14 E 16
WIND 20FT/LATE(MPH) E 10 E 13 E 14 E 16
MIXING HGT(FT-AGL/MSL) 4750 5250
TRANSPORT WND (MPH) E 12 E 14
VENT RATE (KT-FT) 47500 63000
DISPERSION 5 5
DSI 4 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-060800-
EASTERN INTERIOR-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 40 30 50
TEMP (24H TREND) 70 (-3) 88 (+2) 70 87
RH % (24H TREND) 100 (+7) 65 (+1) 100 65
WIND 20FT/EARLY(MPH) SE 11 SE 12 E 13 E 14
WIND 20FT/LATE(MPH) E 11 SE 13 E 13 E 14
MIXING HGT(FT-AGL/MSL) 5990 5970
TRANSPORT WND (MPH) SE 15 SE 18
VENT RATE (KT-FT) 77870 95520
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-060800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 40 50
TEMP (24H TREND) 68 (-3) 83 (+3) 68 83
RH % (24H TREND) 100 (+5) 71 (-3) 100 70
WIND 20FT/EARLY(MPH) SE 9 SE 11 E 11 E 13
WIND 20FT/LATE(MPH) E 8 SE 12 E 11 E 13
MIXING HGT(FT-AGL/MSL) 3650 4440
TRANSPORT WND (MPH) SE 16 SE 20
VENT RATE (KT-FT) 51100 75480
DISPERSION 5 5
DSI 4 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-060800-
CENTRAL MOUNTAIN RANGE-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 30 0 70
TEMP (24H TREND) 67 (-2) 86 (+4) 67 86
RH % (24H TREND) 100 (+5) 66 (0) 99 67
WIND 20FT/EARLY(MPH) SE 6 SE 9 E 8 E 11
WIND 20FT/LATE(MPH) E 5 SE 10 E 8 E 10
MIXING HGT(FT-AGL/MSL) 6820 6930
TRANSPORT WND (MPH) E 9 SE 13
VENT RATE (KT-FT) 54560 76230
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-060800-
CAYEY MOUNTAIN RANGE-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 50 40 40
TEMP (24H TREND) 69 (-2) 83 (+2) 69 82
RH % (24H TREND) 100 (+3) 72 (+1) 100 73
WIND 20FT/EARLY(MPH) E 8 E 10 E 9 E 12
WIND 20FT/LATE(MPH) E 8 SE 11 E 10 E 12
MIXING HGT(FT-AGL/MSL) 4390 5040
TRANSPORT WND (MPH) SE 15 E 20
VENT RATE (KT-FT) 57070 85680
DISPERSION 5 5
DSI 2 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-060800-
VIEQUES-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 50 50
TEMP (24H TREND) 75 (-2) 88 (+1) 75 89
RH % (24H TREND) 93 (+8) 63 (-2) 92 60
WIND 20FT/EARLY(MPH) E 12 E 14 E 16 E 17
WIND 20FT/LATE(MPH) E 12 E 14 E 16 E 16
MIXING HGT(FT-AGL/MSL) 2920 3490
TRANSPORT WND (MPH) SE 18 E 21
VENT RATE (KT-FT) 46720 62820
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-060800-
CULEBRA-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR CLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 20 0 50 40
TEMP (24H TREND) 76 (-2) 90 (+2) 76 90
RH % (24H TREND) 92 (+8) 60 (-5) 91 59
WIND 20FT/EARLY(MPH) E 12 E 14 E 17 E 17
WIND 20FT/LATE(MPH) E 12 E 14 E 16 E 16
MIXING HGT(FT-AGL/MSL) 3130 3510
TRANSPORT WND (MPH) E 18 E 22
VENT RATE (KT-FT) 50080 66690
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-060800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 0 30
TEMP (24H TREND) 73 (-2) 91 (+1) 73 91
RH % (24H TREND) 96 (+9) 57 (+3) 96 57
WIND 20FT/EARLY(MPH) E 12 E 16 G23 E 16 G23 E 18 G26
WIND 20FT/LATE(MPH) E 13 SE 16 G24 E 17 SE 18 G27
MIXING HGT(FT-AGL/MSL) 5070 5230
TRANSPORT WND (MPH) E 20 E 22
VENT RATE (KT-FT) 86190 99370
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-060800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR CLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 20 0 50 30
TEMP (24H TREND) 76 (-2) 86 (+1) 76 85
RH % (24H TREND) 93 (+9) 65 (-3) 90 66
WIND 20FT/EARLY(MPH) E 13 E 16 E 17 E 18
WIND 20FT/LATE(MPH) E 13 E 16 E 17 E 16
MIXING HGT(FT-AGL/MSL) 3160 3440
TRANSPORT WND (MPH) E 18 E 22
VENT RATE (KT-FT) 50560 65360
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-060800-
ST CROIX-
330 PM AST FRI JUN 5 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 40 30
TEMP (24H TREND) 75 (-2) 87 (+1) 75 89
RH % (24H TREND) 95 (+9) 65 (-3) 91 61
WIND 20FT/EARLY(MPH) E 12 E 16 E 17 E 17
WIND 20FT/LATE(MPH) E 13 E 16 E 17 E 16
MIXING HGT(FT-AGL/MSL) 3950 4900
TRANSPORT WND (MPH) E 21 E 23
VENT RATE (KT-FT) 71100 98000
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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